Issue: Replacing rear drum brakes on an 85 toyota 4x4 pickup, 10in x 2.25 shoe. National part vendors/suppliers have either house brand or multiple manufacturer brands each with a HARDWARE kit (or kits)that they (the vendor or manufacturer) specifies as applicable/a fit to the 85, model, VIN, etc. But none the springs in these kits mirror the originals. The kit springs have less robust coils (coil wire thickness), fewer coils and/or 1/3 shorter length of coils yet the spring(s) appear to be the right lengths compared to originals. In context of the issue...is this now normal for replacement hardware kit springs? New and improved tech? I prefer to replace 39 year old springs with new spring hardware but and not getting directions or firm answers from vendors. I think they dont know. Note: the other kit hardware components are generic are will work as rep[lacements. The issue is the springs. Please advise. Thank you.